Production equipment of p-trifluoromethylaniline

Abstract

The invention discloses p-trifluoromethylaniline production equipment, and relates to the field of trifluoromethylaniline production equipment.The p-trifluoromethylaniline production equipment comprises a reaction kettle and a rotating rod penetrating through the reaction kettle, the rotating rod is connected with an external power device, an annular cooling assembly is concentrically arranged in the reaction kettle, and a raw material bin is arranged in the cooling assembly; an opening communicated with the outside is formed in the portion, close to the inner side of the cooling assembly, of the raw material bin, a cooling bin is arranged on the outer side of the cooling assembly, and a diversion cover covering the opening of the raw material bin downwards is arranged on the inner side of the cooling assembly and covers the opening of the raw material bin. The blades drive materials to flow along the inner side of the cooling assembly from top to bottom when rotating forwards, and drive the materials to flow along the inner side of the cooling assembly from bottom to top when rotating backwards and push the flow dividing cover to upwards drive to open the opening, so that the materials enter the raw material bin from the opening, and a circulating assembly for conducting refrigerants to the cooling bin is arranged at the bottom of the reaction kettle.

Description

Technical Field

[0001] The invention relates to the field of production equipment for trifluoromethylaniline, in particular to production equipment for p-trifluoromethylaniline. Background Art

[0002] Trifluoromethylaniline is mainly used to synthesize highly effective and low-toxic pesticides and herbicides, and is widely used in the medical field. In most cases, trifluoromethylaniline is mixed with other substances to obtain different specific effects.

[0003] The existing reaction methods are mostly carried out using a reactor, which provides the temperature, pressure and other special requirements required for the substance mixing reaction. In the process of using the reactor, temperature change is the most frequent operation of the operator. Trifluoromethylaniline has different temperature requirements when reacting with different substances. At the same time, trifluoromethylaniline will also release heat when mixed with specific substances such as oxidizing substances, acids and alkaline substances. The mutual influence of the heat generated during the reaction and the heat provided by the reactor will cause the temperature inside the reactor to be higher than the actual required reaction temperature. When the temperature sensing device of the reactor senses that the temperature is too high, the temperature of the reactants inside the reactor is controlled by the temperature control structure of the reactor itself with a certain delay. During this process, the reactants in the reactor may fail due to the excessive reaction temperature. Summary of the invention

[0004] In order to make up for the deficiencies of the existing technical problems, the purpose of the present invention is to solve the problem in the prior art: the temperature control structure of the reactor itself has a certain delay in the temperature control inside the reactor. This extended temperature control may cause the reactants in the reactor to continue to react at an excessively high reaction temperature, resulting in the failure of the reaction of the reactants and the production of waste.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows: comprising a reactor with an electric heating function on the surface and a rotating rod arranged through the reactor, and the rotating rod is connected to an external power device, a circular ring-shaped cooling component is concentrically arranged inside the reactor, a raw material bin is arranged inside the cooling component, an opening communicating with the outside is opened near the inner side of the cooling component, a cooling bin is arranged outside the cooling component, a downwardly covered diverter cover is arranged inside the cooling component, and the diverter cover covers the opening of the raw material bin; The position where the rotating rod passes through the cooling component is provided with a paddle. When the paddle rotates forward, it drives the material to flow from top to bottom along the inner side of the cooling component. When the paddle rotates reversely, it drives the material to flow from bottom to top along the inner side of the cooling component and pushes the diverter cover upward to open the opening, so that the material enters the raw material bin through the opening. A circulation component that conducts refrigerant to the cooling bin is provided at the bottom of the reactor.

[0006] Furthermore, a drainage component is arranged between the cooling component and the reactor, and the drainage component is divided into a shunt pipe and a drainage bin, wherein the shunt pipe is connected with the raw material bin inside the cooling component, and a reflux hole is opened on the surface of the drainage bin, and the material is discharged to the outside of the cooling component through the reflux hole, ensuring that the material can be effectively discharged and re-enter the outside of the cooling component and return to the reactor to flow again, thereby optimizing the overall material flow and mixing effect.

[0007] Furthermore, the bottom of the rotating rod extends to the interior of the circulation component, and the circulation component includes an outer cabin, an infusion tube connecting the outer cabin and the cooling chamber, a one-way bearing arranged on the surface of the rotating rod, and an impeller on the surface of the one-way bearing. When the rotating rod rotates forward, the one-way bearing rotates idly, and when the rotating rod rotates reversely, the one-way bearing drives the blades to rotate. A conveying pipeline is arranged at the bottom of the outer cabin, and the opening and closing of the circulation component is controlled by the different states of the forward rotation and reverse rotation of the rotating rod, and the circulation component circulates in the cooling chamber through the infusion tube.

[0008] Furthermore, the surface of the diverter cover is provided with a bag-shaped protrusion with the bag opening facing downward, and the flowing material can impact the bag-shaped protrusion to push the diverter cover to open, thereby exposing the opening.

[0009] Furthermore, a ceramic insulation layer is provided on the outside of the cooling component, and a copper partition is provided between the inner raw material bin and the cooling bin for separation, to ensure that the cooling component is not affected by the internal temperature of the reactor and to ensure that the temperature in the raw material bin can be quickly transferred to the cooling bin.

[0010] Furthermore, vertical partitions are provided inside the raw material bin, and two vertical partitions form a group. The vertical partitions of each group are respectively provided on both sides of the opening of the raw material bin, and a gap is left between the top of the vertical partition and the inner wall of the raw material bin. Spiral partitions are provided inside the cooling bin. The reaction substances in the raw material bin can be restricted by the vertical partitions, thereby increasing the moving distance inside the raw material bin and being better cooled by the cooling bin. At the same time, the spiral partitions in the cooling bin will limit the flow direction of the refrigerant, thereby extending the moving distance of the cooling liquid and optimizing the cooling effect.

[0011] Furthermore, there are several reflux holes on the surface of the drainage bin, and the reflux holes are arranged in an inverted triangle shape. The reflux holes on both sides of the drainage bin are staggered with each other. The reflux holes are distributed in a specific shape to ensure uniform discharge of materials and improve mixing uniformity.

[0012] Furthermore, there are several drainage components, which are distributed in a ring between the reactor and the cooling component, and each drainage component is in an inclined state, optimizing the layout of the drainage components to enhance the drainage efficiency and uniformity of material flow.

[0013] Furthermore, there are multiple infusion pipes, each of which is arranged in a C shape and connected to the outer cabin and the cooling chamber respectively. Several infusion pipes are distributed in a ring along the outer cabin to ensure the effective flow of the refrigerant during the circulation process.

[0014] Furthermore, two paddles in the same direction are arranged on the surface of the rotating rod, and the two paddles are respectively close to the two ends of the cooling component. Through the design of double paddles, the liquid flow rate of the material when passing through the cooling component is enhanced.

[0015] Compared with the prior art, the advantages of the present invention are as follows: 1. The rotating rod runs through the reactor, and the bottom of the rotating rod extends to the inside of the circulation component and is connected to the impeller, so that the rotating rod can drive the blades inside the reactor and the impeller inside the circulation component to rotate simultaneously during the rotation process. However, due to the limitation of the one-way bearing between the impeller and the rotating rod, the rotating rod can drive the impeller to rotate through the one-way bearing only when it is reversed, so that the rotating rod does not drive the impeller to rotate in the forward rotation state, thereby not starting the circulation component, and will not affect the temperature required for the normal reaction of the substances in the reactor.

[0016] 2. A drainage component is provided between the cooling component and the reactor, and the drainage component is divided into a shunt pipe and a drainage bin 305, wherein the shunt pipe is connected to the raw material bin inside the cooling component, and a reflux hole is provided on the surface of the drainage bin, and the material is discharged to the outside of the cooling component through the reflux hole. The overall inclination of the drainage component can generate turbulence when the substances in the reactor are mixed, thereby optimizing the mixing effect of the substances in the reactor, and the reaction substances enter the drainage bin through the shunt pipe, which can increase the flow area of ​​the substances and optimize the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the cooling assembly of the present invention.

[0020] Figure 4 It is a schematic diagram of the drainage component of the present invention.

[0021] Figure 5 It is a schematic diagram of the connection state of the circulation component of the present invention.

[0022] Figure 6 It is a schematic cross-sectional view of the circulation component of the present invention.

[0023] Figure numerals: 1, reactor; 2, rotating rod; 3, cooling assembly; 301, raw material bin; 302, cooling bin; 303, drainage assembly; 304, diverter pipe; 305, drainage bin; 306, reflux hole; 4, opening; 5, diverter cover; 501, bag-shaped protrusion; 6, paddle; 7, circulation assembly; 701, outer cabin; 702, infusion tube; 703, one-way bearing; 704, impeller; 705, delivery pipeline. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] like Figure 1-6 As shown, a production device for trifluoromethylaniline comprises a reactor 1 with an electric heating function on the surface and a rotating rod 2 penetrating the reactor 1, wherein the rotating rod 2 is connected to an external power device, a circular ring-shaped cooling component 3 is concentrically arranged inside the reactor 1, a raw material bin 301 is arranged inside the cooling component 3, an opening 4 communicating with the outside is opened near the inner side of the raw material bin 301 close to the cooling component 3, a cooling bin 302 is arranged outside the cooling component 3, a ceramic material insulation layer is arranged outside the cooling component 3, a copper partition is arranged between the raw material bin 301 and the cooling bin 302 to ensure that the cooling component 3 is not affected by the internal temperature of the reactor 1, and that the temperature in the raw material bin 301 can be quickly transferred to the cooling bin 302; A vertical partition is provided inside the raw material bin 301, and two vertical partitions form a group. The vertical partitions of each group are respectively provided on both sides of the opening 4 of the raw material bin 301, and a gap is left between the top of the vertical partition and the inner wall of the raw material bin 301. A spiral partition is provided inside the cooling bin 302. The reaction substances in the raw material bin 301 can be restricted by the vertical partitions, thereby increasing the moving distance inside the raw material bin 301 and being better cooled by the cooling bin 302. At the same time, the spiral partitions in the cooling bin 302 will limit the flow direction of the refrigerant, thereby extending the moving distance of the cooling liquid and optimizing the cooling effect. A drainage assembly 303 is provided between the cooling assembly 3 and the reactor 1. There are several drainage assemblies 303, which are distributed in an annular manner between the reactor 1 and the cooling assembly 3, and each drainage assembly 303 is in an inclined state. The layout of the drainage assembly 303 is optimized to enhance the drainage efficiency and the uniformity of the material flow. The drainage assembly 303 is divided into a shunt pipe 304 and a drainage bin 305, wherein the shunt pipe 304 is connected to the raw material bin 301 inside the cooling assembly 3, and the surface of the drainage bin 305 is provided with a return pipe 304. Flow hole 306, the material is discharged to the outside of the cooling component 3 through the reflux hole 306, ensuring that the material can be effectively discharged and re-enter the outside of the cooling component 3 to return to the inside of the reactor 1 to flow again, optimizing the overall material flow and mixing effect. There are several reflux holes 306 on the surface of the drainage bin 305, and several reflux holes 306 are arranged in an inverted triangle. The reflux holes 306 on both sides of the drainage bin 305 are staggered with each other. The reflux holes 306 are distributed in a specific shape to ensure uniform discharge of the material and improve mixing uniformity. A downwardly covered flow divider cover 5 is provided inside the cooling assembly 3, and the flow divider cover 5 covers the opening 4 of the raw material bin 301. A bag-shaped protrusion 501 with a bag opening downward is provided on the surface of the flow divider cover 5. The flowing material can push the flow divider cover 5 to open by impacting the bag-shaped protrusion 501, thereby exposing the opening 4. The rotating rod 2 is provided with a paddle 6 at the position where it passes through the cooling assembly 3. When the paddle 6 rotates forward, it drives the material to flow from top to bottom along the inner side of the cooling assembly 3. When the paddle 6 rotates reversely, it drives the material to flow from bottom to top along the inner side of the cooling assembly 3 and pushes the diverter cover 5 to drive upward to open the opening 4, so that the material enters the raw material bin 301 through the opening 4. Two paddles 6 in the same direction are provided on the surface of the rotating rod 2. The two paddles 6 are respectively close to the two ends of the cooling assembly 3. The design of the double paddles 6 enhances the liquid flow rate of the material when it passes through the cooling assembly 3. A circulation component 7 for conducting refrigerant to the cooling bin 302 is provided at the bottom of the reactor 1. The bottom of the rotating rod 2 extends to the inside of the circulation component 7. The circulation component 7 includes an outer cabin 701, an infusion pipe 702 connecting the outer cabin 701 and the cooling bin 302, a one-way bearing 703 arranged on the surface of the rotating rod 2, and an impeller 704 on the surface of the one-way bearing 703. There are multiple infusion pipes 702, each of which is arranged in a C shape and connects the outer cabin 701 and the cooling bin 302 respectively. Several infusion pipes 702 are distributed in a ring along the outer cabin 701 to ensure the effective flow of the refrigerant during the circulation process. When the rotating rod 2 rotates forward, the one-way bearing 703 rotates idly. When the rotating rod 2 rotates reversely, the one-way bearing 703 drives the paddle 6 to rotate. A conveying pipeline 705 is connected to the bottom of the outer cabin 701. The opening and closing of the circulation component 7 is controlled by the different states of the forward and reverse rotation of the rotating rod 2. The circulation component 7 circulates in the cooling bin 302 through the infusion pipe 702.

[0026] Working principle description: First, in normal use, the external motor of the present invention drives the rotating rod 2 to rotate forward. When the rotating rod 2 rotates forward, it drives the paddle 6 to stir the material inside the reactor 1, and makes the material flow from top to bottom through the cooling component 3. In this process, the materials are mixed with each other and gradually react, and the material passes through the inner side of the cooling component 3 to push the diverter cover 5, so that the diverter cover 5 remains tightly connected with the cooling component 3 to close the opening 4, and when the paddle 6 rotates, the bottom one-way bearing 703 rotates idly without driving the impeller 704 to rotate. In this process, the reactor 1 generates heat by itself to provide heat to ensure that the internal materials can be mixed and reacted normally; When the mixed reaction is performed until the substances themselves generate heat, the reactor 1 detects that the internal temperature is too high. At this time, the external motor drives the rotating rod 2 to reverse, so that the substances flow from bottom to top through the cooling component 3. When the substances pass through the inner side of the cooling component 3, the bag-shaped protrusion 501 pushes the diverter cover 5 to open so that the opening 4 in the cooling component 3 is exposed, and a retaining ring is provided on the inner side of the cooling component 3 near the diverter cover 5. The diverter cover 5 is blocked by the retaining ring and will not be fully opened, thereby blocking the substances so that part of the substances enter the raw material bin 301 under the action of blocking and flow direction, and move inside the raw material bin 301 along the moving path restricted by the vertical partition plate into the drainage component 303, enter the reactor 1 again along the reflux hole 306, and enter the paddle 6. The next cycle is entered under the action of, and the reversed rotating rod 2 can drive the impeller 704 to rotate through the one-way bearing 703. During the rotation, the impeller 704 sucks the coolant into the outer cabin 701 and sends it into the cooling bin 302 along the infusion pipe 702. The coolant in the cooling bin 302 moves along the path restricted by the spiral partition. During the movement, the temperature of the cooling bin 302 decreases, and the material moving in the raw material bin 301 is cooled. Finally, the coolant extends from the cooling bin 302 to the drain pipe outside the reactor 1 and is discharged outwardly. The material with reduced temperature in the raw material bin 301 is discharged outwardly through the drain assembly 303 and mixed with the raw material in the reactor 1, which can also quickly reduce the temperature of the entire material in the reactor 1.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for trifluoromethylaniline, comprising a reaction kettle (1) with an electric heating function on the surface and a rotating rod (2) penetrating the reaction kettle (1), wherein the rotating rod (2) is connected to an external power device, characterized in that: The reactor (1) is concentrically provided with an annular cooling assembly (3), a raw material bin (301) is provided inside the cooling assembly (3), an opening (4) communicating with the outside is provided on the inner side of the raw material bin (301) close to the cooling assembly (3), a cooling bin (302) is provided on the outer side of the cooling assembly (3), a downwardly covering flow divider cover (5) is provided on the inner side of the cooling assembly (3), and the flow divider cover (5) covers the opening (4) of the raw material bin (301); A paddle (6) is provided at the portion of the rotating rod (2) that passes through the cooling component (3). When the paddle (6) rotates forward, it drives the material to flow from top to bottom along the inner side of the cooling component (3). When the paddle (6) rotates reversely, it drives the material to flow from bottom to top along the inner side of the cooling component (3) and pushes the diverter cover (5) to drive upward to open the opening (4), so that the material enters the raw material bin (301) through the opening (4). A circulation component (7) for conducting a refrigerant to the cooling bin (302) is provided at the bottom of the reaction kettle (1).

2. A production equipment for trifluoromethylaniline according to claim 1, characterized in that: A drainage component (303) is provided between the cooling component (3) and the reaction kettle (1), and the drainage component (303) is divided into a shunt pipe (304) and a drainage bin (305), wherein the shunt pipe (304) is connected to the raw material bin (301) inside the cooling component (3), and a reflux hole (306) is provided on the surface of the drainage bin (305), and the material is discharged to the outside of the cooling component (3) through the reflux hole (306).

3. The production equipment of trifluoromethylaniline according to claim 1, characterized in that: The bottom of the rotating rod (2) extends into the interior of the circulation assembly (7), and the circulation assembly (7) comprises an outer cabin (701), a liquid infusion tube (702) connecting the outer cabin (701) and the cooling chamber (302), a one-way bearing (703) arranged on the surface of the rotating rod (2), and an impeller (704) on the surface of the one-way bearing (703); when the rotating rod (2) rotates forward, the one-way bearing (703) rotates idle; when the rotating rod (2) rotates reversely, the one-way bearing (703) drives the blade (6) to rotate; and a conveying pipeline (705) is arranged at the bottom of the outer cabin (701).

4. The production equipment of trifluoromethylaniline according to claim 1, characterized in that: The surface of the diverter cover (5) is provided with a bag-shaped protrusion (501) with the bag opening facing downwards.

5. The production equipment of p-trifluoromethylaniline according to claim 1, characterized in that: A ceramic insulation layer is provided on the outside of the cooling component (3), and a copper partition is provided between the raw material bin (301) and the cooling bin (302) on the inside for separation.

6. The production equipment of p-trifluoromethylaniline according to claim 1, characterized in that: The raw material bin (301) is provided with vertical partitions in a group of two. The vertical partitions in each group are provided on both sides of the opening (4) of the raw material bin (301), and a gap is left between the top of the vertical partition and the inner wall of the raw material bin (301). The cooling bin (302) is provided with a spiral partition in the inside.

7. The production equipment of p-trifluoromethylaniline according to claim 2, characterized in that: There are a plurality of reflux holes (306) on the surface of the liquid drainage bin (305), the plurality of reflux holes (306) are arranged in an inverted triangle shape, and the reflux holes (306) on both sides of the liquid drainage bin (305) are arranged in an interlaced manner.

8. The production equipment of p-trifluoromethylaniline according to claim 2, characterized in that: There are a plurality of liquid drainage components (303), which are distributed in a ring shape between the reaction kettle (1) and the cooling component (3), and each liquid drainage component (303) is in an inclined state.

9. The production equipment of p-trifluoromethylaniline according to claim 3, characterized in that: There are a plurality of infusion tubes (702), each of which is arranged in a C-shape and is connected to the outer cabin (701) and the cooling chamber (302) respectively, and the plurality of infusion tubes (702) are distributed in a ring along the outer cabin (701).

10. The production equipment of p-trifluoromethylaniline according to claim 1, characterized in that: Two paddles (6) in the same direction are arranged on the surface of the rotating rod (2), and the two paddles (6) are respectively close to two ends of the cooling assembly (3).

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